This Device Keeps Hearts Beating On Their Way To Transplant

Heart transplants usually come from brain-dead donors. That's because doctors have long said a heart taken from a deceased patient can be too damaged or deteriorated by the time they can get to it.

Enter the so-called "heart in a box" from TransMedics, a device that connects a heart to an oxygen and nutrient supply. Doctors say it could make a big difference in how many viable hearts could be eligible for transplants. (Video via UCLA Health)